Automatic mail-exchange system.



A. HUPP.

AUTOMATIC MAIL EXCHANGE SYSTEM.

APPLlCATlON FILED APR. 17. 1912.

1,163,928. Patented Dec.14,1915.

21 SHEETS-SHEET I.

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A. HUPP.

AUTOMATIC MAIL EXCHANGE SYSTEM.

APPLICATION FILED APR-17. 1912.

Patented De.14,1915.

21 SHEETSSHEET 2.

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A. HUPP.

AUTOMATIC MAIL EXCHANGE SYSTEM.

APPLICATION FILED APR.1T. 19

1,163,928. Patented Dec. 14, 1915.

21 $HEETS--SHEET 3.

WITNESSES; N INVENTOR.

COLUMBIA PLANOGRAPH 60., WASHINGTON, n. c.

, A. HUPP. AUTOMATIC MAIL EXCHANGE SYSTEM.

1,163,928 APPLICATION men APR. 11. 1912. Patentad Dec. 14 1915.

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A. HUPP.

AUTOMATIC MAIL EXCHANGE SYSTEM.

APPLICATION FILED APR.1T. 1912.

Patented Dec. 14, 1915.

21 SHEETS-SHEET 5.

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AUTOMATIC MAIL EXCHANGE SYSTEM.

APPLICATION men APR. 12. 1912.

1,163,928. Patented Dec. 14, 1915. I

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AUTOMATIC MAIL EXCHANGE SYSTEM.

APPI-JCATTON man APR. 11. 1912.

Patented Dec. 14, 1915.

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A. HUPP. AUTOMATIC MAIL EXCHANGE SYSTEM.

APPLICATION FILED APR-17.19l2. 1,163,928. Patented Dec. 14, 1915.

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A HUPP.

AUTOMATIC MAIL EXCHANGE SYSTEM. APPLICATION flLED APR. 11. 1912.

1,163,928. Patented Dec.14;1915.

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l iium A. HUPP.

AUTOMATIC MAIL EXCHANGE SYSTEM.

APPLICATION HLED APR. 11. 1912. 1,163,928. Patented Dec. 14, 1915.

21 SHEETS-SHEET I0.

A. HUPP.

AUTOMATIC MAIL EXCHANGE SYSTEM.

APPLICATION man APR. 11. 1912.

1 ,163,928. Patented Dec. 14, 1915.

2K SHEETS--SHEET H.

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AUTOMATIC MAIL EXCHANGE SYSTEM.

APPLICATION FILED APR. 17. I9I2.

1,163,928. Patented Dec.14,1915.

2I- SHEETS-SHEET 13.

WITNESSES [NVEN TOR.

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A. HUPP.

AUTOMATIC MAIL EXCHANGE SYSTEM.

APPLICATION FILED APR. 17.1912.

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AUTOMATIC MAIL EXCHANGE SYSTEM.

APPLICATION FILED APR. 17. 1912,

Patented Bea 14,1915.

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WITNESSES:

kziwmzw' A. HUPP.

AUTOMATIC MAIL EXCHANGE SYSTEM.

APPLICATION FILED APR, 17. m2.

Patented Dec. 14, 1915.

21 SHEETS-SHEET 17.

[N VE N TOR. AZJBERTHUPB WITNESSES.-

ATTORNEY.

A. HUPP.

AUTOMATIC MAIL EXCHANGE SYSTEM.

APPLICATION FILED APR. H. I912.

Patented Dec. 14, 1915.

21 SHEETSSHEET l8.

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A HUPP.

AUTOMATIC MAIL EXCHANGE SYSTEM.

APPLICATION FILED APR. 17. 1912.

1,163,928. Patented Dec. 14, 1915. 21 SHEETSS HEET 20.

N N 1 1 N Q 11 Q & Q 7% m R 1 s N N N INVENTOR. 

